Headwall for drainpipes



May 27, 1930. M. SULLIVAN 1,760,380

HEADWALL FOR DRAIN PIPES .Filed March 16, 1927 Patented May 27, 1930 PATENT OFFICE MICHAEL L. SULLIVAN, OF SANDBERG, CALIFORNIA HEADWALL FOR DRAINPIPES Application filed March 16, 1927.

This invention relates to culverts, and more particularly to a head-wall for culvert drain-pipes. In road construction where it is desired to form a culvert extending transversely of the road beneath the same, it is necessary to form a head wall on either side of the road, which head-wall is usually formed of concrete or the like and through which extends a drain-pipe of corrugated iron.

My invention relates to head-walls for this particular type of drain-pipe, although the principles of my invention might well be applied to any style of drain-pipe.

It is an object therefore, of this invention, to provide a head-wall which will efficiently replace the conventional type of masonry usually employed.

A further object of this invention is to provide a head-wall which is inexpensive to manufacture, yet, which is durable and eilicient in its operation and well adapted to perform the services required of the same.

In the accompanying drawings forming part of this specification,

Figure 1 is a side elevation of a pair of my head-walls showing a drain-pipe associated with the same the parts of the device being in assembled operative position.

Figure 2 is a front view of my improved head-wall.

Figure 3 is a rear View of the same showing a corrugated pipe therein, and

Figure 4: is a sectional view taken substantially along the lines 4-4 of Figure 2.

In the above mentioned drawings, like characters of reference designate like parts throughout, and the roadway is designated at 1, and it is transversely through this road way that the drain-pipe 2 extends. The headwalls shown in this figure are identical in construction, and each comprises a sheet of material bent to provide top and bottom portions 3 and 4: having inwardly inclined flanges 5 and 6, and a corrugated upstanding portion 7 which corrugated portion is riveted or bolted as at 8, to a pair of vertical angle-irons 9 and 10, abutting against the top and bottom portions 3 and 4 of the headwall. A pair of structural steel braces 11 Serial No. 175,742.

and 12 are bolted to the upper and lower ends of the angle-iron 9, and a second pair of structural steel braces 13 and lt are simi larly bolted to the other angle iron 10. These braces are substantially triangular in plan, and are bolted as at 16 and 17 to the upper and lower portions of the sheet metal piece, and to the inwardly inclined flanges 5 and 6 of the same as at 18 and 19. Each upstanding wall 7 is provided centrally with an aperture 21, in which aperture is securely fastened, pipe receiving sections 30 and 31, which sections are substantially semi-circular in cross section and overlap each other. Section 30 constitutes a block member, and section 31 constitutes a pillow member, so arranged that the pipe 2 may be clamped between the two members. Short pieces of angle-irons designated at 33, 34, 35 and. 36 are bolted to these sections adjacent their contacting edges, and suitable clamping bolts 37 and 38 extend through these angle-irons or brackets and serve to clamp the upper and lower sections 30 and 31 tightly against the drain-pipe 2. These sections may be separated by prying or the like when it is desired to remove the drainpipe 2 or insert the same.

My invention therefore, is simple in its construction yet is solid and durable, and is well adapted to replace the conventional type of masonry now in use. In constructing the culvert, the head-walls are assembled and erected on either side ofthe road, the clamping-bolts 37 and 88 are loosened, the sections 30 and 31 are priedapart, the drain-pipe is inserted, and the clamping-bolts 37 and 38 are then tightened. The sections 30 and 31 are of course, shaped to conform to the pipe they are intended to receive, so as to securely lock the latter in position. The corrugations in the upstanding wall 7 add strength to the structure, although the angleirons 9 and 10 form the main support of the structure. The top and bottom portions 3 and 41 respectively, together with their braces 11, 12, 13, and 14., provide foot plates behind which the earth may be compacted. It is thus seen that the weight of the earth instead of tending to force the end wall away from the culvert,

will Weight it down and securely hold it in place.

I do not desire to limit myself to the exact arrangement of parts thus shown, for I con template certain changes in the size and design of my structure to accommodate different sizes and styles of pipe. Only in so far as I have particularly pointed out my invention and limited myself in the accompanying claims forming a part of this specification, do I desire to be limited.

I claim:

1. A head-wall for culverts comprising a structural sheet metal member having parallel top and bottom portions, a corrugated, upstanding portion connecting said top and bottom portions and having an aperture therein, a pair of angle-irons extending between said top and bottom portions, said upstanding, corrugated portion being secured to said an gle-irons, corner braces connecting said top portion to said angle-irons and said bottom portion to said angle irons, a corrugated pillow member secured adjacent said aperture, and a corrugated block member secured adjacent said aperture and extending between said top and bottom portions, brackets secured to said pillow member and to said block member on either side thereof, and clamping bolts between said bracket members whereby said pillow and block port-ions may be brought together to firmly clamp a section of corrugated pipe.

2. A head wall for culverts comprising a structural sheet metal member having parallel top and bottom portions, an apertured upstanding portion connecting said top and bottom portions, a pair of angle irons extending between said top and bottom portions, said upstanding portion being secured to said angle irons, a pillow member secured adjacent the aperture in said upstanding portion, a block member secured adjacent said aperture, brackets secured to said pillow and to said block member on either side thereof, and

clamping bolts between said bracket members.

3. A head wall for culverts comprising a structural sheet metal member having parallel top and bottom portions, a corrugated upstanding portion connecting said top and bottom portions and having an aperture therein, a pipe section in said aperture, said upstanding portion being in cross section in the form of a sign curve, the pitch of which is substantially equal to the radius of said pipe section, and a brace between said top and bottom portions.

4. A head-wall for culverts, comprising an apertured wall, block and pillow members carried by said wall adjacent the aperture therein. and means for clamping a pipe between said block and pillow members.

5. A head-wall for a corrugated culvert,

16 comprising an apertured wall, block and pillow members carried by said wall adjacent the aperture therein, and corrugated to conform to said culvert, and means for clamping said culvert between said block and pillow members.

6. A head-wall for a culvert, comprising an apertured wall, means for rigidly securing a culvert to said wall adjacent the aperture therein, a foot plate of substantially the same width as said wall and extending inwards therefrom, and braces extending between said foot plate and said wall.

7. A head-wall for a culvert, comprising an apertured wall, means for rigidly securing a culvert to said wall adjacent the aperture therein, foot plates extending inwards from the upper and lower edges of said wall, and braces connecting said foot plates and end wall.

8. A head-wall for a culvert, comprising an apertured wall, block and pillow members carried by said wall adjacent the aperture therein, means for clamping a pipe between said block and pillow members, foot plates extending inwards from the upper and lower edges of said wall, and braces rigidly connecting said foot plates and wall.

In testimony whereof I have signed my name to this specification.

M. L. SULLIVAN. 

